Ingredients
Method
- Preheat the oven to 350°F (175°C), grease two 9-inch round pans, and whisk together the flour, sugar, cocoa powder, baking soda, baking powder, and salt.
- Whisk the eggs, buttermilk, oil, and vanilla, stir into the dry ingredients, then mix in the hot coffee and divide the batter between the pans.
- Bake for 30 to 32 minutes until a toothpick comes out with a few moist crumbs, then cool in the pans for 10 minutes before turning out onto a rack.
- Simmer the butter and heavy cream, melt in the chocolate chips, then whisk in the powdered sugar and salt and let the frosting thicken for 20 to 25 minutes.
- Spread frosting between the layers and over the top and sides, then slice and serve.
Notes
Let the cake layers cool completely, about 1 hour total, before frosting, or the fudge frosting will slide right off. If you're short on time, you can speed the frosting's thickening along in the fridge, just stir it every 5 minutes so it sets evenly instead of hardening at the edges.
